Support arm assembly



FIG. 1 is a perspective view of a support arm assembly showing our new design;

FIG. 2 is a left side elevation view thereof (the right side elevational view thereof is a mirror image of FIG. 2);

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines in FIG. 1 illustrating a mounting assembly are for illustrative purposes only and are not part of the claimed design. 

The ornamental design for support arm assembly, as shown and described. 